Solid golf ball

Details Solid golf ball Solid golf ball

2007-09-25

2007-09-25

Trimiew, Raeann (Department: 3711)

Games using tangible projectile

Golf

Ball

Reexamination Certificate

active

11293226

ABSTRACT:
The invention provides a solid golf ball having a solid core, a cover layer that encloses the core, and a plurality of dimples formed on an outside surface of an outermost layer of the cover. The solid core is formed of a rubber composition composed of 100 parts by weight of a base rubber that includes 60 to 100 parts by weight of a polybutadiene rubber having a cis-1,4 bond content of at least 60% and synthesized using a rare-earth catalyst, 0.1 to 5 parts by weight of an organosulfur compound, and an unsaturated carboxylic acid or a metal salt thereof, an organic peroxide and an inorganic filler. The solid core has a deformation, when subjected to loading from an initial load of 10 kgf to a final load of 130 kg, of 2.0 to 3.5 mm, and has a specific hardness distribution. The cover layer, which is formed primarily of a thermoplastic or thermoset polyurethane material and has a thickness of 0.5 to 2.5 mm, a Shore D hardness at the surface of 50 to 70 and a flexural rigidity of 50 to 300 MPa. The core has a surface hardness which is from 1 to 15 Shore D hardness units lower than the surface hardness of the core. The golf ball has a deformation, when subjected to loading from an initial load of 10 kgf to a final load of 130 kgf, of 2.0 to 2.9 mm. The solid golf ball is advantageous overall in competitive use.

REFERENCES:
patent: 4570937 (1986-02-01), Yamada
patent: 5516110 (1996-05-01), Yabuki et al.
patent: 5752889 (1998-05-01), Yamagishi et al.
patent: 5848943 (1998-12-01), Sano et al.
patent: 5929189 (1999-07-01), Ichikawa et al.
patent: 6277924 (2001-08-01), Hamada et al.
patent: 6302810 (2001-10-01), Yokota
patent: 6520872 (2003-02-01), Endo et al.
patent: 6533683 (2003-03-01), Watanabe
patent: 6537158 (2003-03-01), Watanabe
patent: 6642314 (2003-11-01), Sone et al.
patent: 6786836 (2004-09-01), Higuchi et al.
patent: 6837804 (2005-01-01), Watanabe et al.
patent: 6887168 (2005-05-01), Hayashi et al.
patent: 2003/0144085 (2003-07-01), Sasaki et al.
patent: 2003/0144425 (2003-07-01), Mano et al.
patent: 2004/0029650 (2004-02-01), Higuchi et al.
patent: 2004/0147694 (2004-07-01), Sone et al.
patent: 6-098949 (1994-04-01), None
patent: 7-268132 (1995-10-01), None
patent: 9-215778 (1997-08-01), None
patent: 9-271538 (1997-10-01), None
patent: 9-308708 (1997-12-01), None
patent: 11-035633 (1999-02-01), None
patent: 2002-293996 (2002-10-01), None
patent: 2002-355338 (2002-12-01), None
patent: 2003-70936 (2003-03-01), None
patent: 2003-180879 (2003-07-01), None
patent: 2004-180793 (2004-07-01), None
“Hydrolysis of Tri-tert-butylaluminum” by Mason et al., J. American Chemical Society, vol. 115, pp. 4971-4984 (1993).
“Three-Coordinate Aluminum Is Not a Prerequisite for Catalytic Activity in the Zirconocene-Alumoxane Polymerization of Ethylene”, by Harlen et al, J. American Chemical Society, vol. 117, pp. 6465-6474, (1995).
“Report of Research & Development”, Fine Chemical, vol. 23, No. 9, p. 5-15 (1994).

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